Bacalhau à Zé do Pipo is a traditional dish consisting of cod that has been boiled in milk, onions, mashed potatoes, and mayonnaise. The dish is typically baked in an oven as a casserole, after which it is often garnished with olives and peppers.

It is named after its creator, Zé do Pipo, who was the owner of a popular restaurant in Porto during the 1960s and won a national cooking contest with this delicious dish. Ever since that time, restaurants throughout the country adopted his recipe and bacalhau à Zé do Pipo quickly gained popularity.